Resistance of Tribofium castaneum to Phosphine and the Relationship between Complete Lethal Concentration and Exposure Time of Phosphine in Hainan Province

• 作者: Chen Yan Luo Shan Wang Tao Xie Gengxiang Zhang Hongjian Zhao Kuo Zheng Lianhe
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 工学
• 关键词: 赤拟谷盗 曝光时间 磷化氢 抗性系 海南省 致死浓度 抗性菌株 测定方法
• 年，卷（期）: 2017,（4）
• 页码范围: 10-12
• 页数: 3页
• 分类号: TQ649

摘要

[Objective] The paper was to investigate the resistance of Tribolium castaneum to phosphine in Hainan Province. [Method] Using the measurement method of phosphine resistance of stored grain pests recommended by FAO,the phosphine resistance of eight strains of T. castaneum adults in Hainan Province was determined. [Result] The resistance coefficients of different strains of T. castaneum against phosphine ranged from 612 to 1 045,and all strains reached extremely high resistance level( Rf > 160). When the concentration of phosphine was 200 mL/m~3,Rf612,Rf826. 4 and Rf1045 strains had complete lethal time of 8,9 and 11 d,respectively. [Conclusion] T. castaneum in Hainan Province had very strong resistance to phosphine,and the operation scheme of low concentration and long duration should be adopted in elimination of T. castaneum.